Detailed Maintenance yeHydraulic Cylinders yeConcrete Pump Truck Booms 

Concrete pombi rori booms inotsamira zvakanyanya pama hydraulic cylinders kuti iwane chaiyo uye yakagadzikana kusimudza, kutambanudza, uye kupeta mafambiro. Aya masilinda anoshanda ari pasi pekumanikidzwa kukuru, mitoro inorema, uye nehutsinye hwekushanda (sekuratidzwa kune zvakasara zvekongiri, huruva, uye kushanduka kwetembiricha), zvichiita kuti nguva dzose kugadzirisa uye kugadzirisa panguva yakakodzera kwakakosha kudzivirira kutadza kamwe kamwe uye kuve nechokwadi chekuchengetedza kushanda. Ichi chinyorwa chinotsanangudza matanho akakosha uye tekinoroji yekugadzirisa hydraulic masilinda ekongiri pombi rori booms, inovhara pre-yekugadzirisa gadziriro, disassembly, kuongorora, kutsiva chikamu, kubatanidza, uye mushure mekugadzirisa bvunzo.

1. Pre-Maintenance Kugadzirira: Kuchengetedza uye Kugadzirira Kwechishandiso

Kuchengetedza ndiyo inonyanya kukosha usati watanga chero basa rekugadzirisa. Kutanga, misa rori yepombi yekongiri panzvimbo yakati sandara, yakasimba uye batanidza mabhureki ekupaka. Dzikisa iyo boom kune yakagadzikana yakachinjika chinzvimbo (kana shandisa chitsigiro furemu kana boom isingakwanisi kudzikiswa) kudzikisa kudzvanywa pane hydraulic cylinder. Dzima injini yerori uye bvisa bhatiri kudzivirira netsaona activation yehydraulic system. Tevere, sunungura kudzvanywa kwasara mu hydraulic circuit: zvishoma nezvishoma sunungura pombi yemafuta majoini ecylinder (uchishandisa chipanera chine torque limiter) uchiisa pani yemafuta pazasi kuti utore ari kubvinza oiri yehydraulic, kuve nechokwadi kuti hapana kupfapfaidza kwemafuta kwakanyanya kunze kukonzeresa kukuvara.

Pakugadzirira maturusi, unganidza maturusi akasarudzika kudzivirira kukuvadza zvinhu chaizvo. Zvishandiso zvinodiwa zvinosanganisira: seti ye torque wrenches (ine huwandu hwe 0-500 N·m, yakakodzera kuomesa zvakasiyana-siyana mabhaudhi), hydraulic cylinder disassembly stand (kugadzirisa humburumbira zvakadzika panguva yekusassembly), piston tsvimbo yekudhonza (yekubvisa zvakachengeteka piston kubva kune ultrasonic cylinder cleana) mavharuvhu), muyedzo wepamusoro (kutarisa madziro emukati mecylinder barrel uye pamusoro pepiston rod), uye seti yezvikamu zvinotsiva (sezvisimbiso, O-mhete, zvindori zveguruva, uye maoko ekutungamira, izvo zvinofanirwa kuenderana neiyo cylinder modhi-semuenzaniso, yeSany SY5419THB yemapombi ekutanga mapombi erubber flubber ane chaiyo mapombi erubber, chaiwo shandisa mapombi emagetsi erubber, eg. kuramba high pressure uye kuora kwemafuta).

2. Disassembly yeHydraulic Cylinder: Nhanho-ne-Nhanho uye Kukuvadza Kudzivirira

Bvisa humburumbira muwekishopu yakachena, isina guruva (kana shandisa chivharo cheguruva kana uchishanda kunze) kudzivirira zvinosvibisa kupinda muhydraulic system. Iyo disassembly sequence inofanirwa kutevedzera dhizaini yecylinder kudzivirira deformation yechikamu:

1. Bvisa External Connections: Shandisa socket wrench kuti ubvise mafuta ekupinza uye pombi dzekuburitsa kubva kumagumo evhavha. Maka pombi yega yega uye majoini nechiratidzo (semuenzaniso, "Inlet Pipe - Rod End") kudzivirira kukanganisa pakubatanidzwazve. Batai mapombi epombi nemakomba eoiri silinda nemavharosi epurasitiki akachena kudzivirira huruva kana marara kupinda.
2. Bvisa iyo End Cap uye Piston Rod: Gadzirisa cylinder barrel pane disassembly stand. Shandisai torque wrench kuti usunungure mabhoti anobatanidza chivharo chepamberi (tsvimbo yekupedzisira) kune cylinder barrel-shandisa torque zvakafanana (semuenzaniso, 80-120 N · m for M16 bolts) kudzivirira chivharo chekupedzisira kubva pakureba. Mushure mekubvisa mabhaudhi, shandisa rubber mallet kubaya chivharo chekupedzisira zvinyoro nyoro uye woivhomora yakatwasuka. Zvadaro, zvishoma nezvishoma dhonza tsvimbo yepiston (ine piston yakabatanidzwa) kunze kwecylinder barrel, kudzivisa kukwenya pamusoro pepiston tsvimbo kumucheto kwecylinder barrel.
3. Disassemble Internal Components: Kuparadzanisa piston kubva mupiston tsvimbo nekubvisa nut yekuvhara (shandisa spanner neine isina-slip pad kudzivirira kuti piston tsvimbo irege kutenderera). Bvisa gungano rechisimbiso (kusanganisira chisimbiso chikuru, mhete yekuchengetedza, uye buffer seal) kubva mupiston uye end cap-shandisa pick yepurasitiki kudzivirira kukuvadza magirodhi.

3. Kuongorora kweChikamu: Mamiriro Akakosha eKutsiviwa

Chikamu chimwe nechimwe chakatsemurwa chinofanirwa kuongororwa zvakasimba kuti chione kana chochigadzirisa kana kuchitsiva. Izvi zvinotevera zvinhu zvakakosha zvekuongorora uye zviyero:

• Cylinder Barrel: Tarisa madziro emukati kuti haana makwara, ngura, kana kusakara. Shandisa muyedzo wepamusoro-soro kuyera kushata-kana ichipfuura Ra0.8 μm (chiyero che hydraulic cylinder barrels), dhiramu rinofanira kutsiviwa. Pazvicherwa zvidiki (kudzika <0.2 mm), shandisa fine-grit sandpaper (800-1200 mesh) kukwenenzvera pamusoro pakanangana neakisi yecylinder, asi iva nechokwadi chekuti dhayamita yemukati inoramba iri mukati mekushivirira (semuenzaniso, ± 0.05 mm ye 160 mm yemukati dhayamita barrel).
• Piston Rod: Ongorora kunze kune mazino, chrome plating peeling, kana kukotama. Shandisa dial chiratidzo kuyera kutwasuka-kana dhigirii rekukotama richipfuura 0.5 mm pamamita, tsvimbo inofanira kutwasanudzwa (uchishandisa hydraulic straightening machine) kana kutsiviwa. Tarisa chrome plating ukobvu negeji yekuputira ukobvu; kana iri pasi pe 0.05 mm, re-plate tsvimbo kudzivirira kuora.
• Zvisimbiso uye O-Rings: Ongorora pakatsemuka, kuoma, kana deformation. Kunyangwe pasina kukuvadzwa kuri pachena, shandura zvisimbiso zvese nezvitsva (sezvisimbiso zvinodzikira nekufamba kwenguva nekuda kwekuchembera kwemafuta uye shanduko yekushisa). Ita shuwa kuti zvisimbiso zvitsva zvine saizi uye zvinhu zvakafanana nepakutanga-somuenzaniso, shandisa fluororubber seals kune masilinda anoshanda munzvimbo dzinopisa kwazvo (pamusoro pe80 ° C) kudzivirira kuchembera kwekushisa.
• Tungamira Sleeve uye Piston: Tarisa mukati megomba remukati remuperekedzi kuti ripfekwe-kana kubvumidzwa pakati pegwara remaoko uye tsvimbo yepiston inodarika 0.15 mm (yakayerwa negeji yekunzwa), tsiva sleeve yegwara. Ongorora piston's sealing grooves for deformation; kana iyo groove kudzika kwakadzikiswa neinopfuura 0.1 mm, tsiva piston kuti uone kuti chisimbiso chinokwana zvakasimba.

4. Reassembly: Precision Operation Kuti Uve nechokwadi cheKuisa Chisimbiso Kuita

Reassembly ndiyo inodzokera kumashure kwe disassembly, asi kunyatsoita kwakakosha kudzivirira kuvuza kana kutadza kushanda. Tevedza aya matanho akakosha:

1. Yakachena Zvikamu: Pamberi pegungano, chenesa zvese zvinoumba (kusanganisira cylinder barrel, piston rod, uye zvisimbiso zvitsva) ine yakatsaurirwa hydraulic oil cleaner (rega kushandisa peturu kana dhiziri, inogona kukuvadza zvisimbiso). Pukuta zvikamu nemhepo yakamanikidzwa (kumanikidza <0.4 MPa) kudzivirira mvura kana zvakasara kuti zvisare.
2. Isa Zvisimbiso: Isa chidimbu chakaonda chemafuta e hydraulic (rudzi rwakafanana nemafuta ehurongwa, semuenzaniso, ISO VG46) kune zvisimbiso zvitsva uye uzviise mumigero yechisimbiso. Kune chisimbiso chikuru (semuenzaniso, chisimbiso cheU-mukombe), ita shuwa kuti muromo wakatarisana negwara rekumanikidza kweoiri-kuisa zvisirizvo kunokonzeresa kudonha kwakanyanya. Shandisa chisimbiso chekuisa chisimbiso (sleeve yepurasitiki) kusundira chisimbiso mugomba, kudzivirira kumonyoroka.
3. Unganidza Piston uye Piston Rod: Kanda piston padanda repiston uye simbisa nut yekuvhara kune torque yakatarwa (semuenzaniso, 250-300 N · m yeM24 nuts). Shandisa chipanera chetorque kuti uve nechokwadi chekumanikidza, uye kiya nati nepini yecotter (kana yakashongedzerwa) kudzivirira kusunungura panguva yekushanda.
4. Isa Piston Rod muCylinder Barrel: Isa mafuta e hydraulic kumadziro episton uye cylinder barrel mukati memadziro emukati. Sunda tsvimbo yepiston mudhiramu zvishoma nezvishoma uye yakachinjika, kuve nechokwadi chekuti pisitoni haidhumhane nemadziro emukati emubhobho. Zvadaro, isa chivharo chepamberi, gadzirisa mabhoti, uye simbisa mabhoti mu crisscross pattern (torque inofanira kufanana nekugadzirwa kwemugadziri-semuenzaniso, 100 N · m for M18 bolts) kuti uone kuti chivharo chekupedzisira chakavharwa zvakasimba.
5. Batanidza Mafuta Mapaipi: Batanidzazve mafuta ekupinza uye pombi dzekubuda zvinoenderana nemazita akaitwa panguva yedisassembly. Simbisa majoini epombi ne torque wrench (semuenzaniso, 40-60 N · m ye 1-inch mapaipi) kuti usanyanya kuomesa, izvo zvinogona kukuvadza shinda.

5. Post-Repair Testing: Simbisa Kuita uye Kuchengetedza

Mushure mekusanganazve, ita bvunzo dzakakwana kuti uve nechokwadi chekuti hydraulic cylinder inoshanda zvakajairwa:

• Hapana-Mutoro Muedzo: Batanidza bhatiri uye tanga injini yerori. Shandisa iyo boom control lever kuti iwedzere uye kudzoreredza silinda 5-10 nguva payakaderera kumhanya (10-15 mm / s). Chengetedza kuvuza kumagumo evharo uye majoini epombi yemafuta - kana kudonha kukaitika, misa bvunzo nekukasira uye tarisa kuisirwa chisimbiso kana torque yebhaudhi.
• Load Test: Shandisa gauge yekumanikidza kuyera iyo hydraulic system yekumanikidza panguva yekushanda. Wedzera iyo boom kusvika pakureba kwayo uye shandisa mutoro (50% yemutoro wakatemerwa, semuenzaniso, matani gumi e20-ton rated boom) kwemaminitsi makumi matatu. Tarisa kana cylinder inobata mutoro zvakagadzikana (hapana pachena 沉降) uye kana kudzvinyirira kunoramba kuri mukati mehuwandu hwehuwandu (semuenzaniso, 25-30 MPa).
• Operation Test: Edza kumhanya kwecylinder uye kupindura nekugadzirisa kusimudza kwebhoom uye kuwedzera kumhanya. Ita shuwa kuti kufamba kwakatsetseka (hapana jitter kana ruzha) uye kumhanya kunoenderana nezvinodiwa nemugadziri (semuenzaniso, 30-40 mm/s yekuwedzera).

6. Mazano ekuchengetedza uye Post-Repair Care

Kuwedzera hupenyu hwesevhisi yeyakagadziriswa hydraulic cylinder, tevera matipi aya:

• Kugara Kuchinja Mafuta: Tsiva iyo hydraulic mafuta ega ega e2000 ekushanda maawa (kana kamwe chete pagore, chero anouya pekutanga). Shandisa mafuta anosangana nezvinodiwa nehurongwa (semuenzaniso, anti-wear hydraulic oil ine viscosity ye ISO VG46) uye kusefa mafuta ne 10 μm sefa kuti ubvise tsvina.
• Chenesa Sefa Yemhepo: Iyo hydraulic system's air filter inodzivirira guruva kupinda-ichenese maawa mazana mashanu ega ega ekushanda uye kuitsiva kwemaawa 1000 ega ega.
• Daily Inspection: Usati washandisa pese pese, tarisa humburumbira kuti haibvisi, tsvimbo yepiston yezvikwenya, uye mwero wemafuta mu hydraulic tank. Kana ruzha rusina kujairika kana kufamba kunononoka kuchionekwa, mira kushanda uye ongorora humburumbira nekukurumidza.

Mhedziso

Iyo hydraulic cylinder chinhu chakakosha chekongiri pombi rori booms, uye hunhu hwayo hwekugadzirisa hunokanganisa zvakananga kushanda kwerori uye kuchengetedzeka. Nekutevera nhanho dzakadzama dzekugadzirira kusati kwagadziriswa, yakamisikidzwa disassembly, yakaomesesa chikamu chekuongorora, kunyatsoita reassembly, uye yakazara post-kugadzirisa bvunzo, matekiniki anogona kuona kuti hydraulic cylinder inoshanda zvakavimbika. Kugara kugadziridza uye kutsiva nenguva kwezvakasakara zvinoderedza njodzi yekutadza kamwe kamwe asi zvakare kuwedzera hupenyu hwesevhisi yeyose boom system, kuve nechokwadi chekuti kongiri pombi rori inoita zvakatsiga muzvirongwa zvekuvaka.